LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mercedes Benz >> 1994 >> C 220 (202.022) L4-2.2L (111.961) >> Repair and Diagnosis >> Body and Frame >> Pneumatic System >> Testing and Inspection >> Component Tests and General Diagnostics >> Pneumatic System Equipment (PSE) Control Module >> PTP - Pneumatic Test Program >> Pneumatic Multiple Connector Test - Section 33
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Pneumatic Multiple Connector Test - Section 33


NOTE: The multiple connector was eliminated as of approx. 12/93

Preparation For Test:
1. Pry off all pneumatic lines from pneumatic multiple connector (using a 7 mm open end wrench.)
2. Plug all connections on the upper side of the pneumatic multiple connector with plugs (part no. 124 805 02 44).
3. Connect vacuum/pressure tester to the bottom side of the pneumatic multiple connector to test the individual connections ZV, SRU, OSL.

Parts Required for Test:
10 Plugs 124 805 02 44
1 Connector 129 805 04 44

NOTES: The connections on the PSE control module and pneumatic multiple connector are marked with their German acronyms. In other words:
ZV (German) = CL (English),
SRU (German) = MVA (English),
OSL (German) = OSB (English).

Special Tools:






Test Step 1.0 & 2.0:





scientia non olet · About LEMON Manuals